<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>15-animate</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <style>
        div {
            position: absolute;
            width: 200px;
            height: 200px;
            background-color: skyblue;
        }
    </style>
</head>
<body>
    <button>动起来</button>
    <div>今天天气不错</div>
    <script>
        /* 
            语法：
                animate(params,[speed],[easing],[fn]);
            参数：
                params:想要更改的样式，以对象形式传递，必写
                属性名可以不带引号，驼峰命名法
        */
       $(function(){
        $('button').click(function(){
            $('div').animate({
                width:300,
                height:300,
                top:200,
                left:400,
                opacity:0.5,
            },2000,function(){
                console.log('回调函数');
                $('div').css('backgroundColor','green');
            });
        });
    });
    </script>
</body>
</html>